For an average adult there is 2.5 pounds of calcium imbedded into their bones. There are many alternatives to dairy products to get the calcium that you need. Collard greens, broccoli, kale, edamame, bok choy and figs are all great sources of calcium. The RDA of sodium is 2300 milligrams while the average American takes in 4700 milligrams. Electrolytes including sodium and potassium are great to prevent dehydration.